<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>报表参数</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 给图标一个容器，并定义高度和宽度 -->
      <div id="main" style="width: 600px;height:400px"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {
  data() {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {},
  //   dom已经被初始化完毕
  async mounted() {
    var myChart = echarts.init(document.getElementById('main'))
    // 指定图表的配置项和数据
    const { data: res } = await this.$http.get('reports/type/1')
    const result = _.merge(res.data, this.options)
    // this.deepCopy(this.options, this.reportData)
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result)
  },
  methods: {
    deepCopy(newobj, obj) {
      for (var key in obj) {
        var item = obj[key]
        // 判断数据类型
        // console.log(typeof obj[key]);
        if (item instanceof Array) {
          newobj[key] = []
          deepCopy(newobj[key], item)
        } else if (item instanceof Object) {
          newobj[key] = {}
          deepCopy(newobj[key], item)
        } else {
          newobj[key] = item
        }
      }
    }
  }
}
</script>

<style lang="less" scoped>
.el-card {
  margin-top: 20px;
}
</style>